TY - BOOK ID - 134606323 TI - Biological diversity : educational and information materials. AU - Wiedemann, Peter AU - Preußer, Sabine PY - 2008 PB - Berlin Federal Ministry for the environment, nature conservation and nuclear safety DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:134606323 AB - ER -